Reaction of olefins using cerium(IV) sulfate tetrahydrate in carbonyl compounds-H2O

Abstract

The reaction of olefins with cerium(IV) sulfate tetrahydrate [Ce(SO 4 ) 2 ·4H 2 O, CS] in acetone-H 2 O under reflux for 5 h gave 2-oxo-and 2-oxo-5-hydroxy derivatives. In this reaction, the yields of 2-oxo-5-hydroxy derivatives were dependent on the quantity of H 2 O. Moreover, the reaction of α, β-unsaturated ketones with CS in acetone-H 2 O yielded 2,7-dioxo-3-hydroxy or 3,8-dioxo-4-hydroxy derivatives. The reaction mechanism is also discussed.